Xerox did it in 2013, changing 6s into 8s in scanned documents: https://www.dkriesel.com/blog/2013/0802_xerox-workcentres_are_switching_written_numbers_when_sca

Xerox did it in 2013, changing 6s into 8s in scanned documents: https://www.dkriesel.com/blog/2013/0802_xerox-workcentres_are_switching_written_numbers_when_scanning https://www.dkriesel.com/blog/2013/0802_xerox-workcentres_ar...